Leak detector for tire tubes



May 22, l 923.

H. M.- MATTHEWS LEAK DETECTOR FOR TIRE TUBES- Fi led Aug. 23. 1922 4 Pa ama '22, 1923,

U ITE STATES HERBERT'M. MATTHEws, E W ETON, MARYLAND. v

LEAK DETECTOR FOR IRE'TUBEsf- Appl icationffi led Au'gust23; 1922. Serial no. ssasead- To all whom it mayconcem: H i Be it known" thatjI, HERBERT MAT- THEWs, a citizen'ofthe United States, residing at \Vorto-n, in the county of Kent and 5 State of Maryland, have invented certain new and useful Improvements. in Leak Detectors 'for'Tire'Tubes, of which the following is a specification.

This invention relates to'improvements in leak detectors for tiretubes,iand has for its I object to providea cheap, simpleand efiicient device for quickly locating a leak in the inner tube of an automobile tire.

The invention consists of the novel con struction and arrangement hereinafter'more fully set forth in the following "specification and pointed out in" detail in the appended claim. 7 i

In the, accompanying drawin'g,--

'20 Figure 1 is a side elevation of an inner tube showing my invention applied theretof.

Figure 2 is a detail enlarged side elevation of my ilnproved'detector.

Figure 3 is an end view, of Figure2.

Y Figure .4 is a detail perspective view ofthe detector. 1

Referring to the accompanying drawing,

in which likeareference numerals designate alike parts throughout the several .;views ,30 thereofpl designates an innertube,'and 2my improved leak detector. The said detector 2:

is formed of thin resilient metal having the lower ends 3 slightlyturned so that the .de-

tector can be easily slipped over the tube 1.

The ends 4 are also slightly turned upwardly so as to provide a" smooth edge, to the tube 'theinside. so as to outer surface of the detector, which permits when the detector 2 ismoved along the said j tube, in either direction, t'o locate the leak. The said detector is preferably made of spring metal so that the-lower ends can-be forced in against the tube when being used. The detector2 is provided with anumb'er ofapertures 5' therein preferably punched from form a bur-1'6 on the, I

the said detector tobe used to scrapethe surface of the tube 'when'it'is desired to enabling the person using, the device to locate 51 the leak in the-tube a j Having thus described my invention, what:

I claim is:

A leak detector for tire tubes,

afthin piece of resilient, metal having'the sides-thereof bent and the edges turned, and provided with a number of apertures therein forming number of burrs on theouter surface.

' -In'testim0ny whereofI aflix lmy signature.

HERBERT MLMA TH s; 

